--- dictionary.hp	2010-02-24 22:48:55.748937091 -0800
+++ dictionary.hp.new	2010-02-24 22:55:18.696919725 -0800
@@ -33,6 +33,9 @@
 
 ATTRIBUTE	HP-Ip-Filter-Raw			61	string
 
+# See http://wiki.freeradius.org/HP#Capability_advertisements
+ATTRIBUTE	HP-Capability-Advert			255	octets	
+
 # HP-Command-Exception Attribute Values
 VALUE	HP-Command-Exception		Permit-List		0
 VALUE	HP-Command-Exception		Deny-List		1